How to use Image to PDF
- 1Add your images — any mix of formats
- 2Drag them into the order you want as pages
- 3Choose a page size, or let each page fit its image
- 4Set orientation, margin and how images are placed on the page
- 5Build and download the PDF
What Image to PDF does
Putting images into a PDF is really a layout problem. The images are embedded without being re-compressed, so quality is not in question — what you are deciding is what shape each page should be and where the image sits on it. Those choices are what make the difference between a document that prints correctly and one that arrives with white bars or cropped edges.
Two decisions do most of the work. The first is whether pages take their dimensions from the images or from a standard size like A4. The second, when the page is a fixed size and the image is a different shape, is whether to fit the whole image inside it and accept padding, or fill the page and accept losing the edges.
When to use it
- Photographed documents as one file
- Phone photos of a contract, a receipt or an ID become one document, which is what most portals and offices actually ask to receive.
- A printable contact sheet
- A fixed page size with a margin produces something that prints consistently on any printer, rather than depending on how an image viewer decides to scale it.
- Assembling scanned pages
- Scans arriving as individual image files become a proper document, in the correct order, with uniform pages.
- A portfolio to send
- Images in a consistent layout with margins read as a considered document rather than an attached folder of pictures.
Image to PDF settings explained
- Page order
- Images become pages in the order you arrange them. Drag to reorder before building — the list order is exactly the document order.
- Fit to image
- Each page takes the pixel dimensions of its image, so nothing is scaled or padded. Pages end up different sizes if the images are, which is fine on screen and awkward in print.
- Fixed page size
- A4, A3, A5, Letter or Legal. Every page is that size regardless of the images, which is what printing and formal submission require.
- Orientation
- Portrait, landscape or automatic. Automatic chooses per page based on whether the image is wider than it is tall, so a mixed set fills its pages rather than leaving half of each blank.
- Fit inside or fill
- On a fixed-size page, fit inside keeps the whole image and pads the difference; fill covers the page and crops the overflow. Fit is the safe default — you lose no content, only gain white space.
- Margin
- White space around the image on a fixed-size page. Worth setting for anything that will be printed and bound, since printers cannot reach the paper edge anyway.
Choosing a page layout
| Choice | Pages are | Images are | Best for |
|---|---|---|---|
| Fit to image | Each a different size | Exact, unscaled | Screen viewing |
| Fixed + fit inside | Uniform | Whole, with padding | Printing safely |
| Fixed + fill | Uniform | Cropped to fill | Full-bleed layouts |
Limits and what to expect
- Each image becomes exactly one page; several cannot be placed on a single page.
- The PDF has no text layer, so a document made from photographs is not searchable.
- PDF pages have no transparency, so transparent areas are placed over white.
- The file is roughly the sum of the images — building a PDF does not compress them.
- Large batches are limited by the browser tab's memory, since every image is held during assembly.
Troubleshooting
- There are white bars around my images
- Fit-inside mode is padding the difference between the image shape and the page shape. Set orientation to automatic so each page matches its image better, switch to fill if losing the edges is acceptable, or use fit-to-image so no padding is needed.
- My images are cropped
- Fill mode covers the page and trims whatever overflows. Switch to fit inside to keep the whole image, accepting padding instead.
- The pages are all different sizes
- That is fit-to-image mode. Choose a fixed page size such as A4 if the document will be printed, since printers expect uniform pages.
- The PDF is very large
- It is essentially the sum of your images, and phone photos are several megabytes each. Compress the images before building — far more effective than compressing the finished PDF.
Your files and your privacy
Images are read into the browser tab and the PDF is assembled there on your own device. Nothing is uploaded and no copy remains after the tab closes. Since the usual reason to build one of these is a set of photographed identity or financial documents, that is the property worth confirming.
What to use next
FAQ
Can I control the page order?
Yes. Drag the images into the order you want before exporting — each one becomes a page.
Which image formats work?
JPG, PNG, WebP, AVIF, GIF and BMP. Formats a PDF cannot embed directly are converted to JPEG automatically.
Should I use a fixed page size or fit to image?
Fit to image for something that will only be viewed on screen — it reproduces each picture exactly with no scaling or padding. A fixed size such as A4 for anything printed or formally submitted, because uniform pages are what printers and reviewers expect.
What is the difference between fit inside and fill?
Fit inside scales the image until it fits entirely within the page, padding whatever is left over. Fill scales until the page is covered and crops the overflow. Fit keeps all your content; fill keeps the page looking full.
Does building a PDF reduce image quality?
No. The images are embedded rather than re-compressed, so each page looks exactly as good as the file it came from. That also means the PDF is roughly the sum of your images in size.
Are my images uploaded?
No. Reading the images and assembling the document both happen in your browser on your own device.